1969 Chevrolet Camaro ZL1 427 vs 1971 Ford Mustang 429 Cobra Jet (Pure Stock Muscle Car Drag Race)
Featured in this video is a 1969 Chevrolet Camaro ZL1. I'm sure you recognize it from a previous C&Z video. It's an absolute MONSTER!!! All aluminum 427... well, aluminum block, heads, intake. Everything else is forged. All hand built back in the day. Very underrated horsepower/torque ratings. What do you guys think? The other car is one you don't see very much anymore, that being a 1971 Ford Mustang 429 Cobra Jet. These cars just snuck in before the unleaded gas mandate in 1972, so they still had a great compression ratio. The 429 is of course a fantastic engine and improved upon the previous 428 Cobra Jet. I like it. I like it a lot. Anyone a fan out there?

Both of these cars participate in the Pure Stock Muscle Car Drag Race series, so make sure you go to their website and read all the rules, and of course, also follow them on Facebook.

Pure Stock Muscle Car Drag Racing rules:
For 1955 to 1979 musclecars built in United States and Canadian assembly plants with a minimum warranty of 12 months and 12,000 miles.
Any car running faster than 11.50 will be disqualified and will not have a qualifying time recorded.
Any convertible running faster then 13.50 will be disqualified and will not have a qualifying time recorded.
Casting numbers must be correct for the year and horsepower claimed including intake manifold, heads, and exhaust manifolds. Blocks do not have to be "numbers matching," but they must be the correct displacement. Overbores up to .070" are allowed. Stock cranks only.
All Engines – 1.5 extra points allowed over advertised.
The camshaft must be correct for the year, model, and horsepower claimed for the type of lifter (hydraulic or solid). Roller cams NOT allowed.
The valve train must be factory stock for the year, make, and horsepower claimed.
The ignition system must be stock, including the distributor, cap, coil, and wires. Points may be replaced with any electronic conversion that fits under the stock distributor cap.
The carburetor must be correct for the year, make, and horsepower claimed. Jetting and metering changes are permitted. THE CHOKE ASSEMBLY MUST BE IN PLACE AND FUNCTIONAL!
Cast-iron exhaust manifolds are mandatory and must be correct for the year, model, and horsepower claimed. Internal modifications to the exhaust manifolds are NOT allowed. Under no circumstances will headers be allowed, including those cars that came with headers delivered in the trunk. Pipes must be routed as they were originally for the year, make, model, and engine combination. Mufflers must be stock looking in design, that is, oval in shape. No glasspacks or straight pipes allowed unless installed as original equipment. Maximum muffler inlet and outlet size is 2.5 inches. X & H pipes allowed.
The radiator must be correct for the year, make, model, and horsepower claimed. No lightweight, aluminum radiators allowed.
Maximum stall limited to 2200 rpm.
The transmission must be correct for year, make, model and engine of the car. 3-speed manuals may be upgraded to the correct 4-speed if originally available.
The rear axle must be of the same manufacturer as the car. Any gear ratio is allowed.
Reproduction tires or radial tires only.You are allowed to run tires one size over stock.
Factory wheels only.

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